학술논문
The Aquilegia genome: adaptive radiation and an extraordinarily polymorphic chromosome with a unique history
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article
Author
Filiault, Danièle; Ballerini, Evangeline S; Mandáková, Terezie; Aköz, Gökçe; Derieg, Nathan; Schmutz, Jeremy; Jenkins, Jerry; Grimwood, Jane; Shu, Shengqiang; Hayes, Richard D; Hellsten, Ufe; Barry, Kerrie; Yan, Juying; Mihaltcheva, Sirma; Karafiátová, Miroslava; Nizhynska, Viktoria; Lysak, Martin A; Hodges, Scott A; Nordborg, Magnus
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Subject
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Abstract
The columbine genus Aquilegia is a classic example of an adaptive radiation, involving a wide variety of pollinators and habitats. Here we present the genome assembly of A. coerulea ‘Goldsmith’, complemented by high-coverage sequencing data from 10 wild species covering the world-wide distribution. Our analyses reveal extensive allele sharing among species and demonstrate that introgression and selection played a role in the Aquilegia radiation. We also present the remarkable discovery that the evolutionary history of an entire chromosome differs from that of the rest of the genome – a phenomenon which we do not fully understand, but which highlights the need to consider chromosomes in an evolutionary context.